What is the symbol for electroless nickel plating in the new JIS standard?

On drawings, the symbols for electroless nickel plating according to JIS standards are often seen as follows:

Elp-Fe/Ni(90)-P5

In there:

Elp: Symbol for Electroless plating (Electroless plating)

Fe: Product material that needs plating. Here is steel

Ni(90): Indicates that the Nickel content in the plating layer is 90%

P: Phosphorus (For electroless nickel plating, in addition to the main ingredient being Nickel, the plating layer also contains Phosphorus)

5: Minimum coating thickness, unit of measurement is micrometer (µm)